2.Main material is lycra fabric + high-rice velvet, and do not wash(there is a vibration motor inside and cannot be soaked in water). The gel needs to be refrigerated in the refrigerator for 3 to 6 hours.3. Skin-friendly material + ergonomic 3D cotton + magnetic charging design: outer layer of breathable velvet, inner layer of maternal and infant grade soft silicone cotton, fits different face shapes, suitable for sensitive skin, weight is only 90g, matched with elastic adjustment belt. Added magnetic fast charging, with many cycle charges and long life6. This insomnia eye mask: exquisitely packaged with high-end gift box, with magnetic charging cable, storage bag and earplugs inside. It is a birthday gift for family and friends, Valentine's Day, Women's Day, Easterand Christmas gifts5. Silent operation + opaque eye protection: built-in noise reduction motor, working noise is less than 25 decibels, does not interfere with the rest environment, internal earplugs and ice gel, take out the ice gel and put it in the refrigerator to keep it fresh for 1 hour, take it out and put it in the eye mask to use, deeply relax the eyes, relieve fatigue, and effectively relieve insomnia eye mask4. Four massage contacts + micro vibrating motor: This TK hot-selling sleep eye mask has three modes (press M health adjustment, sleep aid mode, sleep mode, and eye protection mode). Enjoy a gentle massage, the office lunch break eye mask is 9.68*3.81*3.38 inches, lightweight, convenient and easy to carry